As the core of modern economy, finance is the most intensive and highest level of information technology application in various industries of national economy. The informatization level of the financial industry has become one of the important symbols of a country's modernization level. Financial informatization infrastructure has become a national strategic infrastructure, which is highly valued by governments around the world and listed in the list of priority development. Various computer-based financial information systems are an important basis for the operation, management and decision-making of the financial industry, occupy a strategic position in the financial development, and are an important basis and guarantee for the financial industry to innovate service products, improve service quality, participate in global competition, gain competitive advantages, prevent and control financial risks, and promote the steady development of the financial industry. With advanced technology and communication requirements, the implementation of integrated wiring projects in the new construction office, and communication with other buildings in the institute, the internal transmission of data, voice, image and cable TV signals, and the realization of communication between the system and the outside, the information confidentiality and security requirements are extremely high.